Cyber-physical systems (CPS) help create new services and applications by revolutionising our world in different fields through their tight interactions automated decisions. This is especially true with the ongoing increase number of physical things (sensors, actuators, smartphones, tablets, so on) along explosive usage online networking applications. Future fifth generation (5G) cellular networks will facilitate enabling CPS communications over current network infrastructure technologies...

By supporting asynchronous transmission and flexible subband (SB) setting, filtered orthogonal frequency division multiplexing (f-OFDM) has been identified as one of the most promising waveforms for future wireless communications, which makes deep investigation on f-OFDM an urgent mission. Therefore, this paper investigates downlink interference systems under different SB configurations. We initially classify overall into two categories, termed inner-SB inter-SB interferences. Subsequently,...

Enantioselectivity of chiral pesticides in environmental safety has attracted more and attention. In this study, we evaluated the enantioselective toxicity rac-metalaxyl R-metalaxyl to zebrafish (Danio rerio) embryos through various malformations including pericardial edema, yolk sac crooked body, short tails. The results showed that there were significant differences caused by R-metalaxyl, LC50 s at 96 h are 416.41 (353.91, 499.29) mg · L(-1) 320.650 (279.80, 363.46) , respectively. order...

In this contribution, we investigate the issue of constant envelope orthogonal frequency-division multiplexing (CE-OFDM) transmission in multipath fading channels, by quantifying its bit-error rate (BER) performance with aid maximum likelihood (ML) detection multiple-input multiple-output (MIMO) configurations. Through theoretical derivation, demonstrate advantage CE-OFDM over traditional counterparts as original OFDM and discrete Fourier transform-spread-OFDM (DFT-s-OFDM) terms BER...

Energy efficiency is one of the major challenges 5G networks. As data rates are expected to increase by 1000x from 4G 5G, energy will need improve about same amount. Recently, harvesting techniques have attracted lots attention scientific community, due their ability network lifetime. More specific, ambient radio frequency (RF) signals special importance, especially with recent RF circuit advancements. In this paper, we consider a device-to-device (D2D) communication in underlay cellular...

Filtered orthogonal frequency division multiplexing (f-OFDM) is considered one of the candidates for future mobile communication because its flexible parameter configuration different scenarios. However, interference analysis f-OFDM considerably challenging due to special transceiver structure, especially in uplink with non-ideal synchronization. The systems under synchronization, which carrier offset (CFO) and timing (TO) multiple user equipment (UE) are considered, investigated this study....

That alleviating the heavy computing task, improving spectral efficiency and prolonging battery lifetime have been key design challenges in Internet of Things (IoT) intelligent connected vehicles (ICV). This paper studies optimization communication, computation energy resource to minimize consumption mobile terminal, where some superior technologies are included, such as Full-Duplex (FD), Simultaneous Wireless Information Power Transfer (SWIPT), Mobile-Edge Computing (MEC) Multi-input...

Orthogonal time frequency space (OTFS) is a two-dimensional modulation scheme designed in the delay-Doppler domain, for combating high mobility environment toward future wireless communications. In this paper, we propose novel generalized spatial combined OTFS (GSMOTFS) system, aiming at achieving better system performance compared to conventional multiple-input multiple-output (MIMO-OTFS) and GSM orthogonal division multiplexing (GSM-OFDM) systems. Furthermore, decision feedback detector...

We propose two enabling technologies for single-carrier Nyquist frequency division multiplexing transceiver, pilot based carrier phase recovery and I/Q modulator bias drift compensation. 420Gbit/s net capacity is demonstrated the maximum unrepeated reach 160km.

This paper revisits the interference channels under strong and very interference, for both discrete memoryless Gaussian channels. In particular, it is shown that classical definitions, while conditions of cases coincide with each other, those are not consistent other in terms mutual information inequalities. Based on this observation, a new class introduced whose capacity region characterized. channel interference. Moreover, subset any existing classes known region.

Although the OFDM/offset QAM (OFDM/OQAM) systems is robust against double selective fading channel, it unfortunately still sensitive to timing synchronization errors and carrier-frequency offsets (CFOs). To solve this problem of OFDM/OQAM systems, in paper, a joint symbol CFO estimation algorithm developed, which employs sliding window into preamble consisting multiple repetitive training sequences. The proposed window-based (WBS) estimator accurately locates arrival time first path,...

在波形调制上具有较大的灵活性优势, 已被 PHYDYAS (physical layer for dynamic spectrum access and cognitive radio

在多径衰落信道中，基于交错正交幅度调制的正交频分复用(OFDM with Offset QAM, OFDM/OQAM)系统使用迫零均衡器进行信号检测时，不能完全消除信道复数特性和滤波器实数正交特性引入的时域符号间干扰和频域子载波间干扰，及信道估计误差导致的误码率性能损失。该文利用对数据初始判决并重构相邻载波及符号间干扰的思想，通过分析采用迫零均衡信号检测时的残余干扰与信道估计误差干扰，提出了一种基于并行干扰抵消和迫零均衡器结合的OFDM/OQAM信号检测方法，并在IEEE 802.22 技术标准的两种典型多径衰落信道中进行了计算机仿真与比较研究。仿真结果表明，与基于迫零均衡的检测方法相比，基于并行干扰抵消的迭代信号检测方法在误码率为1%时，可获得1 dB至2 dB的性能提升。

In this paper, we design a new receiver scheme for the basis expansion model (BEM)-based orthogonal time frequency space (OTFS) system, which includes an extended Kalman filter (EKF)-based channel estimation and reliable (RS)-based interference cancellation (IC). First, initial is obtained by using pilot-aided method, RS established after message passing equalizer. Then, based on correlation, EKF used to optimize estimated information. Finally, received symbols are updated subtracting caused...

Summary In order to achieve flexible configuration and asynchronous transmission of different subbands (SBs), SB filters are utilized in filtered orthogonal frequency division multiplexing (f‐OFDM) systems isolate SBs efficiently. Nevertheless, the price is insertion some intrinsic interference.Therefore, suppression out‐of‐band emission (OOBE) between essential for system performance improvement f‐OFDM. According structure f‐OFDM, an optimization design model based on active interference...